Question | Answer |
Device files located in this directory | /dev |
Directory contains files for all tpyes of DEVICES, even those that don't exist on the system | /dev |
Device files represent devices, they also indicate how: | data is transferred to that device |
Devices, like storage devices, that receive data in BLOCK transfers by using memory to buffer the transfers are called: | block devices |
Devices that send data transfers CHARACTER-by-CHARACTER are called: | character devices |
Files that identify hard drives | /dev/sd{a}{partitionNumber} -
sda1 |
Used to identify the CD-ROM in the system - is just a symbolic link to sr0 | /dev/cdrom |
Identifies floppy drive files - numbering begins at 0 | /dev/fd0 =first floppy drive |
Identifies local terminals on the system - numbering begins at 0 | /dev/ttyI = file for second terminal |
Identifies SERIAL ports on the system - numbering begins at 0 | /dev/ttyS1 = second serial port |
Identifies PARALLEL ports on the system - numbering begins at 0 | /dev/lp1 = second parallel port |
USB devices have their own sub-directory of files to support up 127 USB devices | /dev/USB/fileName |
File for the PS/2 mouse ort | /dev/psaux |
Identifies files for SCSI tape devices - numbering begins at 0 | /dev/st0 |